SCADA-Based Reliability Evaluation

Kelmarsh Wind Farm - 12.3 MW

Author

Jorge A. Thomas

Published

April 8, 2025

Kelmarsh Wind Farm

Project Overview

“Kelmarsh comprises six 2.05MW Senvion MM92 turbines. The Project was acquired from EON in December 2014 and was constructed in joint venture with Santander using balance sheet finance. Construction was completed in April 2016. It is now owned by Cubico Investments.”

(a) Kelmarsh Wind Farm

(b) Senvion MM92 turbine
Figure 1: Kelmarsh Wind Farm is located near Haselbach, Northamptonshire, UK.

Reliability Parameters

Six Wind Turbines - Model Senvion MM92
Reliability Evaluation (2016 - 2022)
Turbine Forced Outages Failure Rate [h−1] Ready * Out-of-Service Probabilities
Total Monthly MTTF [h] MTTR [h] Duration [h] FOR (P0) Availability (P1)
2016
T01 32
90319711002233
0.00379 248.49 15.66 501.01 0.05927 0.94073
T02 53
180121810711102100
0.00627 156.47 2.89 153.18 0.01814 0.98186
T03 30
90399600100200
0.00355 265.50 5.96 178.92 0.02197 0.97803
T04 18
60056510000100
0.00213 439.29 2.33 41.90 0.00527 0.99473
T05 17
90960100000100
0.00201 457.36 25.98 441.71 0.05376 0.94624
T06 29
80086710320101
0.00343 266.34 6.33 183.64 0.02322 0.97678
2017
T01 24
1501570000010100
0.00274 348.69 1.78 42.66 0.00507 0.99493
T02 17
1004100002000100
0.00194 486.26 0.43 7.28 0.00088 0.99912
T03 9
50050001100110
0.00103 875.63 0.41 3.73 0.00047 0.99953
T04 21
1208120000000100
0.00240 397.92 0.28 5.85 0.00070 0.99930
T05 14
1101110000001100
0.00160 583.60 0.43 6.07 0.00074 0.99926
T06 37
13011131200001621
0.00422 221.54 3.24 119.79 0.01440 0.98560
2018
T01 12
40410101000041
0.00137 673.55 0.32 3.84 0.00047 0.99953
T02 19
70712101200014
0.00217 437.37 0.66 12.56 0.00151 0.99849
T03 24
90810301000092
0.00274 349.98 0.44 10.45 0.00124 0.99876
T04 11
30302101000121
0.00126 729.18 0.90 9.87 0.00123 0.99877
T05 11
40400301000111
0.00126 726.26 4.08 44.86 0.00558 0.99442
T06 19
80310111110082
0.00217 416.82 0.35 6.71 0.00085 0.99915
2019
T01 15
60016010000061
0.00171 546.96 0.58 8.63 0.00105 0.99895
T02 17
90019000000061
0.00194 485.38 1.36 23.18 0.00280 0.99720
T03 10
40001100001043
0.00114 794.45 2.11 21.06 0.00264 0.99736
T04 17
80008000000081
0.00194 486.21 0.48 8.20 0.00099 0.99901
T05 8
50005001000020
0.00091 972.48 0.96 7.66 0.00098 0.99902
T06 9
20021000101121
0.00103 791.37 6.11 54.96 0.00766 0.99234
2020
T01 21
90091010054001
0.00239 397.40 1.97 41.31 0.00493 0.99507
T02 25
1400141100333000
0.00285 337.12 0.76 18.92 0.00224 0.99776
T03 14
40031010122400
0.00159 580.58 5.37 75.25 0.00917 0.99083
T04 30
1700170000084001
0.00342 281.19 2.23 66.99 0.00788 0.99212
T05 16
80080000143000
0.00182 515.19 1.61 25.69 0.00311 0.99689
T06 24
90091010254011
0.00273 337.27 0.62 14.88 0.00184 0.99816
2021
T01 24
1200320011400112
0.00274 345.82 4.77 114.53 0.01361 0.98639
T02 14
40041020040120
0.00160 583.82 0.19 2.71 0.00033 0.99967
T03 12
40041001040020
0.00137 673.70 0.16 1.95 0.00024 0.99976
T04 10
40041000040001
0.00114 796.26 0.12 1.15 0.00014 0.99986
T05 27
90042000040395
0.00308 302.35 10.89 294.06 0.03477 0.96523
T06 13
50150110140000
0.00148 576.61 8.53 110.83 0.01457 0.98543
2022
T01 85
350611283510120010
0.00970 101.61 0.26 21.94 0.00253 0.99747
T02 33
16011312000000160
0.00377 255.89 1.81 59.77 0.00703 0.99297
T03 7
30130010200000
0.00080 1,094.54 0.53 3.71 0.00048 0.99952
T04 9
40141100000020
0.00103 869.82 6.86 61.75 0.00783 0.99217
T05 34
1205125001100190
0.00388 250.05 0.25 8.37 0.00098 0.99902
T06 18
40344130200010
0.00205 438.48 23.83 428.91 0.05154 0.94846
* Forced Outages (IEC) only, scheduled stops not included.

Time / State Diagrams

References

Iannone, Richard, and Michael Chow. n.d. great-tables: Make awesome display tables using Python. https://github.com/posit-dev/great-tables.
Mühleisen, Hannes, Mark Raasveldt, et al. 2025. “DuckDB: An Embeddable Analytical Database.” https://duckdb.org.
Plumley, Charlie. 2022. “Kelmarsh Wind Farm Data (0.1.0) [Data Set].” Zenodo. https://zenodo.org/records/8252025.
Vink, Ritchie, and contributors. 2025. “Polars: Fast Multi-Threaded DataFrame Library in Rust and Python.” https://www.pola.rs/.